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Dec 4, 2023

Can Palmer Luckey Reinvent the U.S. Defense Industry?

Posted by in category: military

Military tech startup Anduril Industries is shaking up the U.S. defense industry as it is one of the few privately held technology companies finding success as a Defense Department contractor. But what makes the company’s software so unique that it is being used across multiple branches of the U.S. military and in both the Russia-Ukraine War and Israel-Hamas War?

WSJ explains how this startup is operating in order to disrupt the U.S. defense industry.

Continue reading “Can Palmer Luckey Reinvent the U.S. Defense Industry?” »

Dec 4, 2023

AI experts are roasting the NYT list of ‘who’s who’ in AI for having zero women

Posted by in category: robotics/AI

The New York Times’ profile of “who’s who” in AI, published Sunday, has drawn criticism for featuring zero women.

The article gives credit to a list of twelve men — most of them are the leaders of AI companies and tech giants — for fuelling the rise of the modern AI movement.

“You could come up with no women ⁦@nytimes⁩? I have binders of them starting with @drfeifei,” wrote tech journalist Kara Swisher in an X post on Sunday, referring to Stanford professor Fei-Fei Li.

Dec 4, 2023

Zhurong rover detects mysterious polygons beneath the surface of Mars

Posted by in categories: robotics/AI, space

China’s Zhurong rover was equipped with a ground-penetrating radar system, allowing it to peer beneath Mars’s surface. Researchers have announced new results from the scans of Zhurong’s landing site in Utopia Planitia, saying they identified irregular polygonal wedges located at a depth of about 35 meters all along the robot’s journey.

The objects measure from centimeters to tens of meters across. The scientists believe the buried polygons resulted from on Mars billions of years ago, but they could also be volcanic, from cooling lava flows.

The Zhurong rover landed on Mars on May 15, 2021, making China the second country ever to successfully land a rover on Mars. The cute rover, named after a Chinese god of fire, explored its , sent back pictures—including a selfie with its lander, taken by a remote camera—studied the topography of Mars, and conducted measurements with its ground penetrating radar (GPR) instrument.

Dec 4, 2023

Cybersecurity | Defending the Digital Frontier

Posted by in category: cybercrime/malcode

Cyber security is the practice of protecting computer systems, networks, and programs from digital attacks, unauthorized access, damage, or theft of data. The goal of cybersecurity is to ensure the confidentiality, integrity, and availability of information and computing resources.

Dec 4, 2023

New algorithm finds lots of gene-editing enzymes in environmental DNA

Posted by in categories: biotech/medical, food, genetics, information science

CRISPR—Clustered Regularly Interspaced Short Palindromic Repeats—is the microbial world’s answer to adaptive immunity. Bacteria don’t generate antibodies when they are invaded by a pathogen and then hold those antibodies in abeyance in case they encounter that same pathogen again, the way we do. Instead, they incorporate some of the pathogen’s DNA into their own genome and link it to an enzyme that can use it to recognize that pathogenic DNA sequence and cut it to pieces if the pathogen ever turns up again.

The enzyme that does the cutting is called Cas, for CRISPR associated. Although the CRISPR-Cas system evolved as a bacterial defense mechanism, it has been harnessed and adapted by researchers as a powerful tool for genetic manipulation in laboratory studies. It also has demonstrated agricultural uses, and the first CRISPR-based therapy was just approved in the UK to treat sickle-cell disease and transfusion-dependent beta-thalassemia.

Now, researchers have developed a new way to search genomes for CRISPR-Cas-like systems. And they’ve found that we may have a lot of additional tools to work with.

Dec 4, 2023

KiDS in the sky: New Stellar system discovered by the Kilo-Degree Survey

Posted by in categories: mapping, space

Astronomers have discovered a new stellar system in the outskirts of the Milky Way as part of the Kilo-Degree Survey (KiDS). The newfound system, named Sextans II, is most likely an ultra-faint dwarf galaxy. The finding is reported in a paper published November 10 on the pre-print server arXiv.

KiDS is an extensive multi-band photometric survey utilizing the VLT Survey Telescope (VST) at ESO’s Paranal Observatory in Chile. Since 2011, the survey has been mapping 1,350 square degrees of the night sky in four broad-band filters (u, g, r, i). Although KiDS is focused on the assembly of large-scale structures in the universe, it may also detect low-surface brightness extragalactic stellar systems.

That is why a team of astronomers led by Massimiliano Gatto of the Astronomical Observatory of Capodimonte in Naples, Italy, decided to conduct a large-scale search for unknown faint stellar systems with KiDS. For this purpose, they looked for low-luminosity stellar overdensities in the KiDS latest data release (DR4), which brought promising results.

Dec 4, 2023

High-Power Fiber Lasers emerge as a Pioneering Technology

Posted by in categories: drones, energy

Optical scientists have found a new way to significantly increase the power of fibre lasers while maintaining their beam quality, making them a future key defence technology against low-cost drones and for use in other applications such as remote sensing.

Researchers from the University of South Australia (UniSA), the University of Adelaide (UoA) and Yale University have demonstrated the potential use of multimode optical fibre to scale up power in fibre lasers by three-to-nine times but without deteriorating the beam quality so that it can focus on distant targets.

The breakthrough is published in Nature Communications.

Dec 4, 2023

Mice Eating Less of Specific Amino Acid — overrepresented in diet of obese people — Live Longer, Healthier

Posted by in categories: biotech/medical, health

A new study in mice, published recently in the journal Cell Metabolism, shows that cutting down the amount of a single amino acid called isoleucine can, among other benefits, extend their lifespan, make them leaner and less frail as they age and reduce cancer and prostate problems, all while the mice ate more calories.

There’s a popular saying in some circles that “a calorie is a calorie,” but science shows that it may not be true. In fact, it may be possible to eat more of some kinds of calories while also improving your health.

“We like to say a calorie is not just a calorie,” says Dudley Lamming, a professor and metabolism researcher at the University of Wisconsin School of Medicine and Public Health. “Different components of your diet have value and impact beyond their function as a calorie, and we’ve been digging in on one component that many people may be eating too much of.”

Dec 4, 2023

Why Do We Need Two Copies of Each Chromosome?

Posted by in category: futurism

A new study has shed light on why having two copies of each chromosome is crucial, identifying a mechanism that maintains biallelic gene dosage.

Dec 4, 2023

Suite of Genes Influence Head Shape in Humans

Posted by in category: futurism

Researchers have identified a suite of genes that influence head shape in humans, helping to explain head shape diversity and potentially conditions affecting the skull.

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